苏芸金杆菌β-外毒素对5种土栖真菌的影响  

Effects of β Extra-toxin of Bacillus thuringiensis on 5 species of Soil Fungi

作　　者：李巍娜[1] 闫洪波[1] 杨玉焕[1] 王黑子来[1] 景天忠[1] 王志英[1] 

机构地区：[1]东北林业大学,黑龙江哈尔滨150040

出　　处：《林业科技》2008年第2期34-36,共3页Forestry Science & Technology

基　　金：黑龙江省科技攻关项目(GC04B203)

摘　　要：苏芸金杆菌2亚种β-外毒素对青霉、毛霉、链隔孢和木霉属5种真菌的抑制能力不同。库斯塔克亚种β-外毒素原液、100倍液对5种真菌的抑菌率分别为42．39％～69．86％和21．81％～36．81％；苏芸金亚种β-外毒素原液、100倍液对5种真菌的抑菌率分别为38．27％～61．54％和14．69％～35．90％。2个亚种的β-外毒素的3个处理浓度对前4种菌具有明显的抑制作用。2亚种β-外毒素间抑菌率无显著差异，浓度间抑菌率存在极显著差异。The restrictive ability of both toxins extrated from Bacillus thuringieusis is different to all the five fungis. The inhibition ratio of β extra-toxins extracted from B. thuringieusis sub sp. kurstaki, original solution is 42. 39% -69.89% and 100 times solution is 21.81% -36. 81%. While extracted from B. thuringeusis sub sp. , original solution is 38.27% - 61.54% and 100 times solution is 14. 69% -35.9. %. The inhibition ratio between the 2 sub species of B. thuringieusis with 3 disposals is obvious to all the fungis except Alternaria sp. And the inhibition ratio between the 2 sub species of B. thuringiensis is insignificant, while the inhibition ratio between concentration of β extra-toxins is significant.

关 键 词：苏芸金杆菌 β-外毒素 土壤真菌 抑制 

分 类 号：S763.306.7[农业科学—森林保护学]